How to Fine-Tune DALL-E 3 Images Step by Step

Crafting a character and refining it step by step is a smooth process in DALL-E 3. The real secret? Make sure DALL-E 3 knows which image you’re referencing throughout your conversation. This helps keep your chosen style consistent. Master this, and you’ve unlocked the full potential of DALL-E 3 for your image editing tasks.

You’ll find all you need to get started with DALL-E 3 in this article, so if it’s your first time, click here:

👉 How to Use DALL-E 3 in ChatGPT

First off, here’s a pro tip: use this prompt in the Custom Instructions to help DALL-E 3 keep track of your image:

Prompt: Assign a unique identifier to each image displayed beneath it in the format: “x” followed by a sequential number.

This neat trick is credited to X user @anukaakash, aiming to let DALL-E 3 tag each image with an ID for smoother editing.

dalle 3 custom instructions button
dalle 3 custom instructions

Ready to craft characters? Here’s the prompt I used to kick things off:

Prompt: Create a 3D Pixar-style cartoon character named Juna, a young girl with a cheerful and friendly look. Juna has light brown skin, a cute button nose. Her hair is a curly, voluminous bob that falls to her shoulders, and she’s wearing a cozy beige knitted hat.

DALL-E 3 responds with two images, marked as x1 and x2.

create characters in dalle 3

These identifiers are gold! They let us fine-tune images to our heart’s content. For our character scene:

Prompt: Juna from Image x1 is sharing ice cream with a friendly dragon in a sunny park.

character is sharing ice cream in dalle 3

We get two new identifiers, x3 and x4. I’m partial to x3 for my original character. Say I want to add a marshmallow to Juna’s scene in x3, my prompt goes like this:

Prompt: Juna from Image x3 is sharing a cotton candy with the same dragon from Image x3.

character is sharing cotton candy in dalle 3

A few tries in, and x5 still resembles x3 best. Want to isolate dragons in x5? Here’s the prompt I used:

Prompt: Image of a cheerful dragon from Image x5 wearing a white chef’s hat and apron, joyfully cooking with a wooden spoon and an assortment of colorful vegetables around it.

The dragons aren’t an exact match to x5, but they vibe with Pixar’s style.

chef dragon by dalle 3

Next, I fancied moving Juna from x6 to x8. Check out the prompt:

Prompt: Create an image blending characters and elements from both Image x6 and Image x8, ensuring the characters’ consistency.

dragon and girl in kitchen by dalle 3

By the way, DALL-E 3 has recently been fine-tuned to give each image a gen_id by default. For instance, here’s how to view gen_id for two images:

gen_id by dalle 3

But I find this gen_id a tad cumbersome. It’s just easier with x. Although it’s great for pinpointing images, maintaining character consistency can be hit or miss. Take for example placing Juna with a marshmallow in x9:

Prompt: Please have the girl from rGAIvC9U9GwISUgP hold a cotton candy in her hand in the same scene.

girl holding cotton candy with dragon in dalle 3

For those aiming for tighter character consistency, I’ve shared some tricks in another piece here:

👉 99% Character Consistency with DALL-E 3

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